Popular culture and the fitness industry have distilled physical fitness down to two very superficial motivations: achieving a desired physique aesthetic, and burning calories. For many people, these motivations are enough to get them into the gym, but there are many, many people out there who aren’t motivated by these goals. Perhaps they are happy with their physique, or comfortable with their weight, or simply more concerned with other aspects of living. There is nothing wrong with this at all, and in fact I think being less concerned with one’s appearance than other important aspect of...